scholarly journals Observation of both second-harmonic and multiphoton-absorption-induced luminescence in ZnO

2006 ◽  
Vol 18 (14) ◽  
pp. 1533-1535 ◽  
Author(s):  
D.C. Dai ◽  
S.J. Xu ◽  
S.L. Shi ◽  
M.H. Xie ◽  
C.M. Che
Keyword(s):  
Second Harmonic ◽  
Multiphoton Absorption

scholarly journals Frequency Doubled CO2 Laser Induced Decomposition of Carbonyl Compounds: Cyclobutanone

1984 ◽  
Vol 4 (1-6) ◽  
pp. 275-285 ◽  
Author(s):  
Mei-Kuen Au ◽  
P. A. Hackett ◽  
M. Humphries ◽  
P. John
Keyword(s):  
Carbonyl Compounds ◽  
Carbon Dioxide Laser ◽  
Second Harmonic ◽  
Multiphoton Absorption ◽  
Carbonyl Groups ◽  
Cyclic Ketones ◽  
Acyl Chlorides ◽  
Frequency Coverage ◽  
Product Array ◽  
Induced Decomposition

This paper reports the first use of radiation derived from a TEA carbon dioxide laser by nonlinear upshifting techniques (second harmonic generation) in initiating multiphoton absorption and dissociation. The frequency doubled CO2 laser has frequency coverage from 2180–1750 cm–1. This frequency region is of importance as it allows pumping of the fundamental stretching modes of organic carbonyl groups (anhydrides, acyl chlorides and strained cyclic ketones), inorganic carbonyl groups, and carbontritium bonds. The laser has been used to excite cyclobutanone in the region of the carbonyl stretch. Efficient multiphoton absorption and two channel dissociation are observed. The product array is consistent with that observed upon excitation at 10 μm.

Femtosecond laser excited second harmonic and multiphoton absorption induced UV luminescence generation behaviour of ZnO nanofibers

Optik ◽  
2018 ◽  
Vol 154 ◽  
pp. 320-324
Author(s):  
Rudrashish Panda ◽  
Avanendra Singh ◽  
Rudranarayan Samal ◽  
Sayantan Bhattacharya ◽  
Pratap K. Sahoo ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Second Harmonic ◽  
Multiphoton Absorption ◽  
Uv Luminescence ◽  
Zno Nanofibers

Giant increase of the second harmonic radiation's absorption during optical poling of oxide glass

2003 ◽  
Vol 50 (8) ◽  
pp. 1237-1244 ◽  
Author(s):  
M. K. Balakirev ◽  
V. A. Smirnov ◽  
L. I. Vostrikova ◽  
I. V. Kityk ◽  
J. Kasperczyk ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Oxide Glass
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